linux-kernel - [PATCH v1 12/26] net: dsa: microchip: ksz8: move static mac table operations to a separate functions

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Date:   Mon, 28 Nov 2022 13:00:20 +0100
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Arun.Ramadoss@...rochip.com
Subject: [PATCH v1 12/26] net: dsa: microchip: ksz8: move static mac table operations to a separate functions

We need it to reuse the code for add/del_fdb

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 drivers/net/dsa/microchip/ksz8795.c | 34 +++++++++++++++++++----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 392f6cb1f706..d16dc8e5ed18 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -993,8 +993,8 @@ int ksz8_fdb_dump(struct ksz_device *dev, int port,
 	return 0;
 }
 
-int ksz8_mdb_add(struct ksz_device *dev, int port,
-		 const struct switchdev_obj_port_mdb *mdb, struct dsa_db db)
+static int ksz8_add_sta_mac(struct ksz_device *dev, int port,
+			    const unsigned char *addr, u16 vid)
 {
 	struct alu_struct alu;
 	int index;
@@ -1004,8 +1004,8 @@ int ksz8_mdb_add(struct ksz_device *dev, int port,
 	for (index = 0; index < dev->info->num_statics; index++) {
 		if (!ksz8_r_sta_mac_table(dev, index, &alu)) {
 			/* Found one already in static MAC table. */
-			if (!memcmp(alu.mac, mdb->addr, ETH_ALEN) &&
-			    alu.fid == mdb->vid)
+			if (!memcmp(alu.mac, addr, ETH_ALEN) &&
+			    alu.fid == vid)
 				break;
 		/* Remember the first empty entry. */
 		} else if (!empty) {
@@ -1021,23 +1021,23 @@ int ksz8_mdb_add(struct ksz_device *dev, int port,
 	if (index == dev->info->num_statics) {
 		index = empty - 1;
 		memset(&alu, 0, sizeof(alu));
-		memcpy(alu.mac, mdb->addr, ETH_ALEN);
+		memcpy(alu.mac, addr, ETH_ALEN);
 		alu.is_static = true;
 	}
 	alu.port_forward |= BIT(port);
-	if (mdb->vid) {
+	if (vid) {
 		alu.is_use_fid = true;
 
 		/* Need a way to map VID to FID. */
-		alu.fid = mdb->vid;
+		alu.fid = vid;
 	}
 	ksz8_w_sta_mac_table(dev, index, &alu);
 
 	return 0;
 }
 
-int ksz8_mdb_del(struct ksz_device *dev, int port,
-		 const struct switchdev_obj_port_mdb *mdb, struct dsa_db db)
+static int ksz8_del_sta_mac(struct ksz_device *dev, int port,
+			    const unsigned char *addr, u16 vid)
 {
 	struct alu_struct alu;
 	int index;
@@ -1045,8 +1045,8 @@ int ksz8_mdb_del(struct ksz_device *dev, int port,
 	for (index = 0; index < dev->info->num_statics; index++) {
 		if (!ksz8_r_sta_mac_table(dev, index, &alu)) {
 			/* Found one already in static MAC table. */
-			if (!memcmp(alu.mac, mdb->addr, ETH_ALEN) &&
-			    alu.fid == mdb->vid)
+			if (!memcmp(alu.mac, addr, ETH_ALEN) &&
+			    alu.fid == vid)
 				break;
 		}
 	}
@@ -1065,6 +1065,18 @@ int ksz8_mdb_del(struct ksz_device *dev, int port,
 	return 0;
 }
 
+int ksz8_mdb_add(struct ksz_device *dev, int port,
+		 const struct switchdev_obj_port_mdb *mdb, struct dsa_db db)
+{
+	return ksz8_add_sta_mac(dev, port, mdb->addr, mdb->vid);
+}
+
+int ksz8_mdb_del(struct ksz_device *dev, int port,
+		 const struct switchdev_obj_port_mdb *mdb, struct dsa_db db)
+{
+	return ksz8_del_sta_mac(dev, port, mdb->addr, mdb->vid);
+}
+
 int ksz8_port_vlan_filtering(struct ksz_device *dev, int port, bool flag,
 			     struct netlink_ext_ack *extack)
 {
-- 
2.30.2